
function s1_hello() {

echo "hello, world!"

}

function s2_tell_who_i_am() {

echo "$(whoami)"

}

function s3_which_distro_do_i_use() {

cat /etc/os-release |head -n1|grep "NAME"

}

function s4_view_my_cpu_arch() {

uname -m

}

function s5_show_first_scsi_disk_size() {

lsblk -l | \grep disk | \grep '^sda ' |awk '{print $4}' |tr -d 'G'

}

function s6_show_main_memory_size_in_megabytes() {

free -m |grep "Mem:" |awk '{print $2}'

}


